Jdethod of making pattern-printing bolls



May 8; 1923. I 1,454,243

r v J. w. M INDOE 5 METHOD OF MAKING PATTERN PRINTING ROLLS Filed April18, 1921 Inveniozj I L 4 W 7%Z7/C&M

Patented May 8, 1923.

, f UNIT-E. sr

JeMEsw. Marianas; or LOOKPORT, New YORK;

METHOD or MAKING PATTERN-PRINTING'RQLLS Application filed April 18, 1921. Serial No; 462312;

State of New York, have invented new and useful Improvements in Methodsof. Making Pattern-Printing Rolls, of which the following is aspecification.

The object of my inventionis the provi sion of a simplepinexpensive andeffective method for making a yieldable printing roll which exertsarelatively light pressure upon the paper web or other surface to bedecorated and-which is therefore especlally sultable for printing adesign or pattern in a plurality of quick-drying colors durlng a singlerun of the web through the printing press.

In the accompanying drawings: Flgure 1 is a side elevation of a moldingapparatus which may be used for practicing my inven-' tion. Figure 2 isa vertical section thereof. Figure 3 is a top plan view of the upperspindle centering device. Figure 4 is a horizontal section on line 44,Fig. 1. Figure 5 is a fragmentary view of the pattern backing-sheet andthe pattern secured thereto preparatory to being rolled into cylindricalform. Figure 6 is a perspective View of the 1 finished printing roll.

Similar characters of reference indicate corresponding parts throughoutthe several views. I

The apparatus employed for practicing my invention preferably comprisesan upright mold composed of two half sections 10, 10, which are adaptedto be securely joined at diametrically opposite sides b horizontallyswinging pivot bolts 11. These sections may be supported in a verticalposition on a suitable base 12.

The core or mandrel of the mold consists of an upright rod or spindle 13having reduced ends 14, 15, forming oppositely facing shoulders 16 and17, respectively. The lower end 14 of this spindle is seated in anopening 18 in the top of the base 12, its shoulder 16 resting on saidtop, while the upper end 15 of the spindle passes through an opening 19formed in a centering wheel or spider 20 removably arranged in the,upper end of the mold. This centering spider rests upon the uppershoulder 17 of said spindle. Surrounding the latter is a sleeve 21 andabove the latter isan upwardly tapering sleeve 22 for assisting the flowof the 'molding materialuwhich forms the desired size.

molding composition into the lower portion of the mold. As. shown inFigs. 1-and'2, these sleeves are of less diameter than the interiordiameter .cf the mold: sections, whereby an-. intervening spaceis leftfor the printing surfaceof the roll.

, 23 represents a backing or sheetto which a. pattern sheet 24 to'bereproduced on the roll is secured by glue or other appropriate adhesiverial: This pattern sheet pref-8v I erably consists of: an ornamentalfabric 5 or material,-such as cloth, lace,"etc., although i any materialhaving the desired pattern-in relief is suitable. These sheets may beprepared and united in the following manner? The pattern-sheet isproperly squared up and stretched in a suitable frame to bring itsthreads and configurations in proper po sition or alinement. The back ofsaid pattern-sheet is then covered with a suitable sizing, as shellac,to holdthe threads in position when dry, by means of a hot ironandsquared up to The backing sheet 23, which is of flexible material,such as'rubher-sheet packing, is, next given a uniform coating ofadhesive material and the back side of the fabric pattern-sheet is givena thin coat of sizing, after which the two sheets are brought togetherandunited by the pressure of a suitable weight and left to' harden. Whenhard, the pressure is removed and a hot iron is passed over the surface,of the pattern, so as to cause all parts thereof to adhere to thebacking, This pattern or pattern-form is then rolled 7 into a cylinderwith the lace or fabricssheet forming the inner face thereof, as shownin Figs. 2 and 4:, the longitudinal edges of the pattern meeting in abutt joint 25. The

pattern is of the proper diameter to snugly fit within the mold, so asto practically form an ornamental lining therefor.

from top to bottom. The pattern isythus molded in intaglio in thesurfaceof the coma position, which upon hardening forms a yieldable printingsurface. Any suitable composition may be used for this purpose,

the yieldin c.

after which it is smoothed It will thus be understood that a continuouspattern is perfectly at-its abutting edges.

adhering to it.

ing the spindle 13 and sleeves 21, 22 remain embedded in the roll, theends 14: and 15 of the spindle forming trunnions for supporting the rollin a printing press.

- By this process, an inexpensive printing roll having a yieldablemolded body with a pattern molded on its surface is produced which willprint a continuous impression upon a web of paper or other suit-able material,

Instead of utilizing ornamental fabric for the pattern sheet, anappropriate design may be cut or formed by suitable tools in a flexibleplastic material applied to a backing sheet of rubber or other flexiblematerial. In this case, after executing the pattern, it is allowed todry and then rolled into cylindrical form, as in the previouslydescribed construction.

I claim as my invention:

The herein described method of making a printing roll having aninta-glio pattern in its surface, which consists in applying anornamental pattern sheet, such as lace or the like, to a flexiblebacking, rolling said backing into cylindrical form and placing it in amold with the pattern on the inner face of the backing and the rear sideof the backing bearing against the inner side or" the mold, placing aspindle axially in the mold and pouring a molding composition into thespace between said pattern sheet and said spindle, whereby the printingroll is molded upon the spindle and the pattern is reproduced upon. thesurface of the printing roll.

JAMES W. M'QINDOE.

